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Program only crashes as release build — how to debug?
...o a program. You can turn the debug heap off by using environment variable _NO_DEBUG_HEAP . You can specify this either in your computer properties, or in the Project Settings in Visual Studio. That might make the crash reproducible with the debugger attached.
More on debugging heap corruption her...
Random number generator only generating one random number
...nly Random Global = new Random();
[ThreadStatic] private static Random _local;
public int Next(int max)
{
var localBuffer = _local;
if (localBuffer == null)
{
int seed;
lock(Global) seed = Global.Next();
localBuffer = new Rand...
How do I enable EF migrations for multiple contexts to separate databases?
...Delete any existing .cs files in the Migrations folder
In SSMS, delete the __MigrationHistory system table.
Creating the initial migration:
In Package Manager Console:
Enable-Migrations -EnableAutomaticMigrations -ContextTypeName
NamespaceOfContext.ContextA -ProjectName ProjectContextIsInIfNotM...
Get MIME type from filename extension
...isting above has 560 mappings. Oddly, the MS listing is missing extremely common MS extensions even, like .docx and .xlsx and other important web extensions like .csv, .swf, and .air.
– Samuel Neff
Jan 2 '13 at 4:52
...
Is there any overhead to declaring a variable within a loop? (C++)
...s initialized but never used, so a reasonable optimiser can just remove it completely (except the second snippet if the variable was used somewhere after the loop).
– CiaPan
Dec 4 '16 at 20:27
...
How do I add options to a DropDownList using jQuery?
...M object.
var myOptions = {
val1 : 'text1',
val2 : 'text2'
};
var _select = $('<select>');
$.each(myOptions, function(val, text) {
_select.append(
$('<option></option>').val(val).html(text)
);
});
$('#mySelect').append(_select.html());
This way we...
Disable a Button
...
I also get an error if I change (_ sender: ) to UIButton . The error reads: Value of type '(UIButton) -> ()' has no member 'isEnabled'
– user9470831
Feb 5 '19 at 4:25
...
AngularJS Directive Restrict A vs E
...you have to follow the following instructions in order to make it working: https://docs.angularjs.org/guide/ie
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How can I list all foreign keys referencing a given table in SQL Server?
... sql 2008 database for some reason. sp_help shows the relations, but this command will not.
– tbone
Jun 5 '13 at 18:43
21
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How do I get a UTC Timestamp in JavaScript?
...ample:
var ticks = getCurrentTimeUTC(); //Or get it from the server
var __s = "ticks=" + ticks +
", DateTime=" + formatDateTimeFromTicks(ticks) +
", Date=" + formatDateFromTicks(ticks) +
", Time=" + formatTimeFromTicks(ticks);
document.write("<span>" + __s + "</span>");
...